The Mystery, Inc. team investigates the theft of a travelling circus' payroll money and the disappearance of a ventriloquist, and concludes their pursuit of the thieves of the parts of the dragon's eye stone in Hong Kong.

The Mystery, Inc. team investigates the theft of a travelling circus' payroll money and the disappearance of its star attraction, a legless ventriloquist. Then, the team concludes their pursuit of the thieves of the parts of the dragon's eye stone, chasing a mysterious villain named Lee Shiu Shian to Hong Kong.